Drying oven by Griffin and Tatlock
Drying oven
Hot Water Drying Oven with double walls made of copper
circa 1900
Drying oven by A. Gallenkamp and Co. Ltd.
Gallenkamp BS size 2 oven
1962-1968
Portable incubator and stand by Townson and Mercer
Electrically heated hot water oven.
Electrically heated hot air oven
Gallenkamp incubator size 2
1962-1968
Hearson's patent biological incubator size A7
Hearson's patent biological incubator size A1
Drying oven by Charles Hearson and Co. c. 1916 (patent No. 102538)
circa 1916
Anhydric electric incubator for use up to 440C
Oven by Gallenkamp
Incubator, electric, trade names Anhydric oven
1960
Incubator by Charles Hearson and Co. c. 1939
circa 1939
Two Hearsons patent electric drying ovens
Drying oven
Circular water-bath (drying oven) on iron stand. Rings missing. Late 19th century
1880-1900